-54.92% is the change from 193 to 87
Calculation steps:
[( 87 - 193 ) ÷ 193] x 100 = -54.92%
Formula
Percentage change = [(87 - 193) / 193] x 100
Subtract the new number by the original number
87 - 193 = -106
-106 ÷ 193 = -0.5492227979274611
-0.5492227979274611 x 100 = -54.92%